igeo

Class ICurveCache

java.lang.Object

igeo.ICurveCache

public class ICurveCache
extends java.lang.Object

Point cache of a curve for proximity search.

Author:

Satoru Sugihara

Field Summary

Fields

Modifier and Type	Field and Description
ICurveGeo	curve
int	deg
IVec[]	pts
IVec2[]	pts2
int	resolution

Constructor Summary

Constructors

Constructor and Description
ICurveCache(ICurveGeo crv)
ICurveCache(ICurveGeo crv, int resolution)

Method Summary

Methods

Modifier and Type	Method and Description
int	closerIndexOnLine(IVec2 pt, int index)
int	closerIndexOnLine(IVec pt, int index)
int	closest(IVec pt)
int	closest(IVec2 pt)
void	init()
void	init2()
double	recursiveSearch(IVec2 pt, double minU, IVec2 minPt, double maxU, IVec2 maxPt, int depthCount)
double	recursiveSearch(IVec pt, double minU, IVec minPt, double maxU, IVec maxPt, int depthCount)
double	u(IVec pt) approximate invert projection from 3D location to interanl parameter U (closest point on curve)
double	u(IVec2 pt) approximate invert projection from 2D location to interanl parameter U

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

curve

public ICurveGeo curve

resolution

public int resolution

deg

public int deg

pts

public IVec[] pts

pts2

public IVec2[] pts2

Constructor Detail

ICurveCache

public ICurveCache(ICurveGeo crv,
           int resolution)

ICurveCache

public ICurveCache(ICurveGeo crv)

Method Detail

init

public void init()

init2

public void init2()

u

public double u(IVec pt)

approximate invert projection from 3D location to interanl parameter U (closest point on curve)

u

public double u(IVec2 pt)

approximate invert projection from 2D location to interanl parameter U

closerIndexOnLine

public int closerIndexOnLine(IVec pt,
                    int index)

closerIndexOnLine

public int closerIndexOnLine(IVec2 pt,
                    int index)

recursiveSearch

public double recursiveSearch(IVec pt,
                     double minU,
                     IVec minPt,
                     double maxU,
                     IVec maxPt,
                     int depthCount)

recursiveSearch

public double recursiveSearch(IVec2 pt,
                     double minU,
                     IVec2 minPt,
                     double maxU,
                     IVec2 maxPt,
                     int depthCount)

closest

public int closest(IVec pt)

closest

public int closest(IVec2 pt)